Quiz  /  Genetic Engineering Class 9 MCQ Questions With Answers

  • 1. 
    This image shows a...

  • Punnett Square
  • Phenotype
  • Genotype
  • Dominant allele

  • 2. 
    Which is used to cut DNA molecules at specific points?

  • gel electrophoresis
  • PCR analysis
  • a restriction enzyme
  • recombinant DNA

  • 3. 
    Dolly the sheep

  • Genetic engineering
  • Cloning

  • 4. 
    Polymerase chain reaction is used to

  • determine the sequence of DNA.
  • make copies of a DNA sequence.
  • selectively breed plants and animals.
  • produce mutations in bacteria.

  • 5. 
    If green is dominant over purple, then what is the genotype for this individual?

  • Purple
  • Green
  • GG
  • gg

  • 6. 
    What is a GMO?

  • An organism that has had its DNA modified by humans
  • An organism missing a chromosome
  • Epigenetics
  • A genetically identical organism

  • 7. 
    What process is used to allow organisms (plants/animals) with desired characteristics to produce the next generation?

  • Selective Breeding
  • Hybridization
  • Generation Time
  • Inbreeding

  • 8. 
    Hybridization is...

  • Selective Breeding between two unrelated organisms
  • Selective Breeding between two inbred organisms
  • Selective Breeding within a species
  • Selective Breeding within a population

  • 9. 
    Genetic engineering has been used to produce

  • medicines.
  • food animals.
  • improved crops.
  • all of these.

  • 10. 
    Restriction Enzymes are . . .

  • proteins
  • DNA
  • fats
  • carbohydrates

  • 11. 
    Which vehicles are often used for gene therapy to carry a healthy gene?

  • Bacteria
  • Plastic capsules
  • Powder balls
  • Viruses

  • 12. 
    Gel electrophoresis enables scientists to

  • separate DNA fragments.
  • combine DNA fragments.
  • count the genes in DNA.
  • insert DNA in cells.

  • 13. 
    Brown (B) is dominant over white (b). Which genotype is a purebred for brown fur?

  • BB
  • Bb
  • bb
  • All of the above

  • 14. 
    What is used at the end of DNA fragments to determine the sequence of DNA?

  • Dye-Labeled Nucleotide Bases
  • Regular Nucleotide Bases
  • Broken Nucleotide Bases
  • Linear Nucleotide Bases

  • 15. 
    What do gene maps show?

  • Location of all the genes on a chromosome
  • Location of all the genes in the human body
  • Location of all the chromosomes in an individual
  • Location of an all the DNA in an individual's genes

  • 16. 
    During __________ a cell takes in DNA from outside the cell.

  • Mutation
  • Distillation
  • Recombination
  • Transformation

  • 17. 
    Selective breeding is where ___________ decides which traits should be passed on

  • Nature
  • A human
  • Mrs. Yezak
  • The illuminati

  • 18. 
    Which of the following genotypes is homozygous recessive?

  • RR
  • Rr
  • rr
  • None of the Above

  • 19. 
    Which statement explains how a population’s genetic variability and diversity can be affected by selective breeding?

  • Genetic variability and diversity decrease because only select individuals are bred.
  • Genetic variability and diversity increase because only select individuals are bred.
  • Genetic variability increases and diversity decreases because only select individuals are bred.
  • Genetic variability decreases and diversity increases because only select individuals are bred.

  • 20. 
    During transformation, a cell

  • is treated with radiation.
  • has two genetically different parents.
  • has foreign DNA inserted in its chromosome.
  • has parents of different species.

  • 21. 
    Simple ring of DNA from prokaryotes

  • plasmid
  • restriction enzymes
  • recombinant DNA
  • gene

  • 22. 
    Any change or mistake in DNA replication can cause a ________

  • cancer cell
  • virus
  • disease
  • mutation

  • 23. 
    Transgenic organisms contain

  • genes from other species.
  • cells of another organism.
  • genes of only one parent.
  • one or more human genes.

  • 24. 
    In humans, what would the blood type of a child be if she inherited type A from Dad and type B from Mom?

  • O
  • A
  • B
  • AB

  • 25. 
    Rice modified to have more Vitamin A

  • Genetic engineering
  • Cloning

  • 26. 
    If a pea plant were homozygous recessive for height, how would its alleles be represented?

  • TT
  • Tt
  • tt
  • tT

  • 27. 
    Why might people be against cloning?

  • It's creepy
  • It can cause unknown defects
  • It is detrimental to genetic diversity
  • All of the above

  • 28. 
    When cell transformation is successful, the recombinant DNA...

  • Undergoes mutation
  • Is treated with antibiotics
  • Becomes part of the transformed cell's genome
  • Becomes a nucleus

  • 29. 
    Advantages of genetically modified crops include(s)

  • insect resistance
  • drought/freeze resistance
  • higher yield
  • all of these are reasons for using GMOs

  • 30. 
    The opossum and kangaroo both incubate their young in a pouch. This provides evidence that they---

  • are descended from a common ancestor
  • Have very similar skeletal structures
  • belong to the same species
  • must range great distances to eat
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